Although you won't have to worry about spoilage with such vast quantities of spices, they will go stale quite rapidly.
The inherent oils in this grain make it even more durable than white rice, although it still has a shelf life. It's possible for it to go bad.
Coffee beans are not likely to spoil, but they will lose some of their flavor and fragrance if they are stored for an extended period of time.
Flour will absorb and hold onto moisture if it is left out for too long. That's... not a nice thing to be honest.
Baking powder, in contrast to baking soda, will collect moisture if not kept dry. Moisture in food or drink is never a good thing.
Even after its expiration date, yeast can still be used, however its effectiveness decreases.
People do, in fact, buy cheese in large quantities, but you probably shouldn't join them.
Longevity won't be achieved through freezing either; such strategy is doomed to fail.
Once a condiment like mayonnaise or ketchup has been opened, its shelf life decreases exponentially.
You recall that we discussed the rancidity of natural oils just a few slides ago.